Explain more on what you really want to achieve.Many options. Ultrasound, IR, capacitive, etc.Which one works best depends on at least:- how close proximity should it detect?- how big of an area to monitor?- what material is the wall made of?- is the wall flat or curved or other shape?- detect the whole person's presence or a pointing finger getting too close to the wall?Maybe more, but this off the top of my head.
Hi guys,I had a quick question. I wanted to create something that uses a sensor to sense a person's proximity to an object, i.e. a wall, and make an alarm sound. What would be the best (most accurate for this idea) sensor to use?Thanks
"too close" for the finger is how close? 2 mm or 5 meters or something else?How about the birds?